{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "Given the dominant role of p21 in p53 cell cycle control , we crossed Trp53 ( 515C / 515C ) mice onto a p21 - null background to determine whether p21 was required for maintaining chromosomal stability and delaying tumor onset ."}
{"Anatomy": ["cell", "chromosomal", "tumor"]}